Bull-wheel post or bearing support



May 6, 1930.

W. OBRIEN BULL WHEEL POST 0R BEARING SUPPORT Filed June 11. 1928Patented May 6, 1930 UNITED STATES.

PATENT FFICE BULL-WHEEL POST OR'BEARING SUPPORT Application filed J'une11,

My invention relates to bull-wheel posts, and more particularly tometallic posts for use in drilling purposes.

The invention consists of certain novel fea tures and details ofconstruction, as will be more fully described hereinafter and finallypointed out in the claims.

I will now describe my invention, reference being bad to theaccompanying drawing, in which similar letters of reference indicatecorresponding parts and in which Figure 1, is a side elevation of one ofthe posts showing the recessed portions and the journal-box, and Fig. 2,is a front elevation of both posts showing the manner of securing themto the channel-iron, and top bracing iron. 7 f A, represents the posts,B, the journal-b0 and C, and D, the recessed portions thereof.

The posts are made from H-beam iron and are very substantial. V Therecesses D, in the lower ends of the posts are out in the rear sides,both sides of the anges being cut away back to the center web, while therecesses C, are cut in the front or on the opposite side of the web, forthe purpose of securing the posts to a crossmember E, which runs acrossand is secured to the legs of the derrick (not shown). 1

=H-beam, drilling away about one-half of the web for the purpose ofreceiving. the journalbox B. This journal-box is then welded rigidly inplace and-may be babbitted for receiving the journals on the hubs of thebull-wheel reel.

Suitable holes aredrilled in both ends of the posts for receiving rivetsor bolts for se curing them to the channel-iron and the up- 40 per crossmember, also holes are drilled in A hole F, is then drilled in one sideof the 1928. Serial No. 284,339.

web into which is welded a journal-box, together with suitable holesdrilled in each end ofthe posts or supports for securing same inposition when in use, all substantially as and for the purposesdescribed.

2. The combination in bull-wheel posts or bearing supports, formed fromH-beam iron and provided with recesses ineach end thereof and oppositeto each other, a hole in one side and extending about half way throughthe center web into which is welded a j ournalbox, together with holesdrilled in each-end'of the posts or supports, in combination with thecross-member and channel-iron of a derrick to which is secured saidposts or supports, all substantially as shown and described. v

In testimony that I claim the foregoing as my own invention I havehereunto set'my hand.

WILLIAM OBRIEN.

the posts for securing braces to them which run to the floor of thederrick.

Having described my invention, What I 5 claim and desire to secure byLetters Patent is: I

1. The improvements in bull-wheel posts or bearing supports formed fromH-beam' iron, having recesses in'each end thereof and opposite toeachother, a hole in oneside and 50 extending about half .way through thecenter

